:root{
  --bg:#0f1420;--panel:#171e2e;--panel2:#1c2740;--line:#2a3550;--line2:#33405f;
  --text:#e7ecf5;--muted:#8b98b8;--accent:#3f8cff;--accent2:#10b981;
  --danger:#f0565f;--gold:#f5c451;--shadow:0 10px 30px rgba(0,0,0,.35);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{height:100%;}
body{background:radial-gradient(120% 90% at 50% 0%,#1a2440 0%,var(--bg) 60%);color:var(--text);
  font-family:-apple-system,"Segoe UI","Microsoft YaHei",Roboto,sans-serif;font-size:15px;overflow:hidden;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select{font-family:inherit;outline:none}
.hidden{display:none!important}
#app{height:100%;display:flex;flex-direction:column;max-width:580px;margin:0 auto}

header{display:flex;align-items:center;gap:10px;padding:13px 14px 11px;flex:0 0 auto;border-bottom:1px solid var(--line)}
header .logo{width:34px;height:34px;border-radius:10px;flex:0 0 34px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;color:#fff}
header h1{font-size:16px;font-weight:700}
header .sub{font-size:11px;color:var(--muted);margin-top:1px}
header .spacer{flex:1}
#backBtn{color:var(--muted);font-size:14px;font-weight:600;padding:6px 8px;border-radius:8px}
#backBtn:hover{color:var(--text)}

main{flex:1 1 auto;overflow-y:auto;padding:12px 14px 14px;-webkit-overflow-scrolling:touch}
main::-webkit-scrollbar{width:5px}
main::-webkit-scrollbar-thumb{background:var(--line2);border-radius:5px}

.tabbar{flex:0 0 auto;display:flex;border-top:1px solid var(--line);background:rgba(15,20,32,.92);backdrop-filter:blur(6px)}
.tab{flex:1;color:var(--muted);padding:10px 0;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:16px}
.tab .lb{font-size:10px;letter-spacing:.5px}
.tab.active{color:var(--accent)}
.tab.active .lb{color:var(--accent);font-weight:700}

.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:12px;box-shadow:var(--shadow)}
.card h2{font-size:15px;font-weight:700;margin-bottom:10px}
.card .tip{font-size:11.5px;color:var(--muted);margin-top:8px;line-height:1.5}
.inputrow{display:flex;gap:8px;margin-bottom:8px}
.inputrow input{flex:1;padding:11px 12px;border-radius:10px;border:1px solid var(--line);background:var(--panel2);color:var(--text);font-size:14px;min-width:0}
.inputrow input:focus{border-color:var(--accent)}
.inputrow button{padding:0 18px;border-radius:10px;background:var(--accent);color:#fff;font-weight:600;font-size:14px}
.btn{padding:11px 14px;border-radius:10px;font-size:14px;font-weight:600;text-align:center;display:inline-block;transition:all .15s}
.btn:active{transform:scale(.97)}
.btn.sm{padding:6px 10px;font-size:12px;border-radius:8px}
.btn.green{background:var(--accent2);color:#04241b}
.btn.ghost{background:var(--panel2);color:var(--text)}
.btn.danger{background:rgba(240,86,95,.12);color:var(--danger);border:1px solid rgba(240,86,95,.3)}
.btn-row{display:flex;gap:9px}

.item{display:flex;align-items:center;gap:11px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:11px 12px;margin-bottom:9px}
.item.tap{cursor:pointer}
.item.tap:active{transform:scale(.985)}
.item .ava{width:36px;height:36px;border-radius:10px;background:rgba(63,140,255,.14);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;flex:0 0 36px;font-size:14px}
.item .ava.g{background:rgba(16,185,129,.15);color:var(--accent2)}
.item .ava.p{background:rgba(245,197,81,.15);color:var(--gold)}
.item .body{flex:1;min-width:0}
.item .body .t{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.item .body .s{font-size:11px;color:var(--muted);margin-top:2px}
.item .chev{color:var(--muted);font-size:15px}
.icon-btn{width:32px;height:32px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:15px;color:var(--muted)}
.icon-btn.del:hover{color:var(--danger);background:rgba(255,86,95,.1)}
.icon-btn:hover{color:var(--accent)}

.breadcrumb{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);margin-bottom:12px;flex-wrap:wrap}
.breadcrumb button{color:var(--accent);font-size:12px;font-weight:600;padding:3px 5px;border-radius:4px}
.breadcrumb button:hover{background:var(--panel2)}
.breadcrumb .sep{opacity:.5}

.empty{text-align:center;color:var(--muted);padding:34px 0;font-size:14px}
.empty .big{font-size:38px;margin-bottom:8px;opacity:.5}
.subtitle{font-size:12px;color:var(--muted);margin:12px 0 8px;font-weight:700;letter-spacing:.5px}

.rank-opt{display:flex;gap:8px;margin-bottom:12px}
.rank-opt select{flex:1;min-width:120px;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:10px;font-size:13px}
.rank-item{display:flex;align-items:center;gap:12px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:11px 12px;margin-bottom:8px}
.rank-no{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;flex:0 0 32px;font-size:14px;background:var(--line)}
.rank-no.r1{background:linear-gradient(135deg,#ffd86b,#f5a623);color:#3a2500}
.rank-no.r2{background:linear-gradient(135deg,#d8dee9,#b0bac9);color:#223}
.rank-no.r3{background:linear-gradient(135deg,#f2b087,#d98846);color:#3a1d07}
.rank-item .nm{font-weight:600;font-size:14px;flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.rank-item .bt{font-size:10.5px;color:var(--muted);margin-top:2px}
.rank-item .tm{font-weight:800;font-size:15px;color:var(--accent2);font-variant-numeric:tabular-nums}

.flt-row{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.flt-row select{flex:1;min-width:100px;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:9px;font-size:12.5px}
.rec-item{display:flex;align-items:center;gap:10px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px}
.rec-item .rn{font-weight:700;font-size:14px}
.rec-item .rs{font-size:10.5px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rec-item .rtm{font-weight:800;font-size:16px;color:var(--accent2);font-variant-numeric:tabular-nums;margin-left:auto}
.rec-item .del{background:rgba(255,86,109,.12);color:var(--danger);width:36px;height:36px;border-radius:9px;font-size:14px;flex:0 0 36px}

#timerView{flex:1 1 auto;display:flex;flex-direction:column;min-height:0}
.timer-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--line);flex:0 0 auto}
.timer-head .who{font-size:12px;color:var(--muted)}
.timer-head .who b{display:block;font-size:17px;color:var(--text);font-weight:700;margin-top:2px}
.mode-switch{display:flex;background:var(--panel2);border-radius:9px;padding:3px;gap:3px}
.mode-switch button{color:var(--muted);padding:6px 12px;border-radius:7px;font-size:12px;font-weight:600}
.mode-switch button.on{background:var(--accent);color:#fff}
.down-sel{flex:0 0 auto;display:flex;align-items:center;gap:6px;padding:6px 14px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.down-sel select{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:7px;padding:6px 7px;font-size:13px}
.clock-zone{flex:1;display:flex;align-items:center;justify-content:center;position:relative;min-height:0;padding:6px}
.clock{font-variant-numeric:tabular-nums;font-weight:800;color:#fff;letter-spacing:.01em;line-height:1;
  text-shadow:0 0 24px rgba(63,140,255,.35),0 0 60px rgba(63,140,255,.18);user-select:none;transition:color .2s}
.clock.live{color:var(--accent)}
.clock.live.cd{color:var(--gold)}
.clock.end{color:var(--danger);text-shadow:0 0 26px rgba(240,86,95,.5)}
.clock-lbl{position:absolute;bottom:10px;left:0;right:0;text-align:center;color:var(--muted);font-size:12px;letter-spacing:1px}
.big-tap{flex:0 0 auto;margin:0 14px 12px;border-radius:16px;padding:20px;font-size:18px;font-weight:800;color:#fff;letter-spacing:2px;
  background:linear-gradient(135deg,#2f8bff,#1a5bd1);box-shadow:0 12px 30px rgba(47,139,255,.3);transition:all .15s}
.big-tap.running{background:linear-gradient(135deg,#ff6b54,#d1302b);box-shadow:0 12px 30px rgba(255,90,80,.3)}
.big-tap:active{transform:scale(.98)}
.big-tap:disabled{opacity:.5}
.result-wrap{flex:0 0 auto;padding:0 14px 13px;display:flex;gap:10px}
.result-wrap .btn{flex:1;padding:15px;font-size:15px;font-weight:700;border-radius:14px}

.toast{position:fixed;left:50%;bottom:64px;transform:translateX(-50%) translateY(20px);background:var(--panel2);color:var(--text);border:1px solid var(--line2);border-radius:10px;padding:10px 18px;font-size:13px;opacity:0;transition:all .25s;z-index:999;box-shadow:var(--shadow);max-width:85vw;text-align:center;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.mask{position:fixed;inset:0;background:rgba(4,7,14,.62);backdrop-filter:blur(2px);z-index:800;display:none;align-items:center;justify-content:center}
.mask.show{display:flex}
.sheet{width:88%;max-width:400px;background:var(--panel);border-radius:16px;padding:18px;border:1px solid var(--line2);box-shadow:var(--shadow)}
.sheet h3{font-size:15px;margin-bottom:12px;text-align:center}
.sheet .btn-row{margin-top:14px}
.sheet .btn-row .btn{flex:1}
.sep{height:1px;background:var(--line);margin:14px 0}

@media (max-height:430px) and (orientation:landscape){
  .clock-zone{padding:0}
}

/* ================= 双向 LED 计时屏（红黑） ================= */
#timerView.led{
  height:100%; min-height:0; display:flex; flex-direction:column;
  background:radial-gradient(110% 70% at 50% -10%, #2a0f0f 0%, #160606 45%, #0b0505 100%);
  --lred:#ff3b3b; --lred2:#ff6b6b; --ldim:#b32b2b;
  font-family:"Segoe UI","Microsoft YaHei","Courier New",sans-serif;
}
#timerView.led *{box-sizing:border-box; user-select:none; -webkit-user-select:none; touch-action:manipulation}
/* 上下两个大面板：flex 平分剩余空间，互不挤压 */
#timerView.led .led-panel{
  flex:1 1 0; min-height:0; width:100%;
  display:flex; justify-content:center; align-items:center;
  border-radius:20px; padding:2px 8px;
  background:linear-gradient(180deg, rgba(255,59,59,.08), transparent 55%), #160a0a;
  box-shadow:inset 0 0 0 2px rgba(255,59,59,.5), inset 0 0 42px rgba(255,59,59,.16), 0 12px 30px rgba(0,0,0,.55);
  position:relative;
}
#timerView.led .led-panel::after{
  content:""; position:absolute; top:12px; right:16px; width:7px; height:7px; border-radius:50%;
  background:var(--lred); box-shadow:0 0 6px var(--lred); opacity:.85;
}
#timerView.led .led-top{ margin:8px 8px 2px; }
#timerView.led .led-top .timer-text{ transform:rotate(180deg); }   /* 倒置 → 对面观看为正 */
#timerView.led .led-bottom{ margin:2px 8px 4px; }
/* 数字 */
#timerView.led .timer-text{
  width:100%; height:100%; display:flex; justify-content:center; align-items:center; text-align:center;
  line-height:1; white-space:nowrap; padding:0 2%; font-variant-numeric:tabular-nums; letter-spacing:.01em;
  color:var(--lred2); font-family:'Courier New',monospace; font-weight:800;
  font-size:clamp(38px, 17vw, 150px);
  text-shadow:0 0 8px rgba(255,59,59,.72), 0 0 22px rgba(255,59,59,.45), 0 0 55px rgba(255,59,59,.22);
}
#timerView.led .timer-text.live{ color:#ff6b6b; }
#timerView.led .timer-text.cd{ color:#ffb3b3; }
#timerView.led .timer-text.end{ color:#fff; text-shadow:0 0 10px rgba(255,255,255,.5),0 0 30px rgba(255,59,59,.6); }
/* 中央控制条 */
#timerView.led .led-ctrl{
  flex:0 0 auto; width:100%; max-width:560px; margin:0 auto; padding:2px 10px 4px;
  display:flex; flex-direction:column; align-items:center; gap:4px;
  border-top:1px solid rgba(255,59,59,.25); border-bottom:1px solid rgba(255,59,59,.25);
  background:rgba(10,4,4,.35);
}
#timerView.led .led-title{ display:flex; align-items:center; gap:8px; font-size:14px; letter-spacing:.08em; }
#timerView.led .led-tag{
  font-size:10px; padding:2px 8px; border-radius:999px; border:1px solid rgba(255,59,59,.6);
  color:var(--lred2); letter-spacing:.2em;
}
#timerView.led #ledWho{ font-weight:700; color:#ffd9d9; }
#timerView.led .led-mode{ display:flex; background:#0f0505; border:1px solid rgba(255,59,59,.4); border-radius:999px; padding:3px; gap:2px; }
#timerView.led .led-mode button{ color:#ffa6a6; padding:6px 14px; border-radius:999px; font-size:12.5px; font-weight:600; border:none; background:none; font-family:inherit; }
#timerView.led .led-mode button.on{ background:var(--lred); color:#1a0505; box-shadow:0 0 14px rgba(255,59,59,.5); }
#timerView.led .led-status{
  display:flex; align-items:center; gap:6px; font-size:11px; color:rgba(255,160,160,.8); letter-spacing:.05em; min-height:16px;
}
#timerView.led .led-dot{ width:7px;height:7px;border-radius:50%;background:rgba(255,107,107,.4);display:inline-block; }
#timerView.led .led-dot.live{ background:var(--lred); box-shadow:0 0 8px var(--lred); }
#timerView.led .led-title .led-who{cursor:pointer}
#timerView.led .down-sel{ color:rgba(255,160,160,.85); font-size:12px; }
#timerView.led .down-sel select{ background:#0f0505; color:#ffb8b8; border:1px solid rgba(255,59,59,.4); border-radius:999px; padding:5px 10px; font-size:13px; font-family:inherit; }
/* 主按钮 —— 红色 LED */
#timerView.led .big-tap{
  flex:0 0 auto; margin:6px 10px 10px; border-radius:999px; padding:16px 0;
  font-size:17px; font-weight:800; letter-spacing:2px; color:#1a0505;
  background:linear-gradient(135deg,#ff5a45,#d81f1f); border:1.5px solid #ff6b52;
  box-shadow:0 8px 26px rgba(255,50,40,.35), inset 0 1px 0 rgba(255,255,255,.25); transition:all .15s; font-family:inherit;
}
#timerView.led .big-tap.running{ background:linear-gradient(135deg,#ff6b52,#ff9a3a); color:#1a0505; border-color:#ffca9a; box-shadow:0 0 24px rgba(255,80,40,.5); }
#timerView.led .big-tap:active{ transform:scale(.97); }
#timerView.led .big-tap:disabled{ opacity:.5 }
/* 结果按钮 */
#timerView.led .result-wrap{ padding:2px 10px 12px; display:flex; gap:10px; }
#timerView.led .result-wrap .btn{ flex:1; padding:15px 0; border-radius:999px; font-size:15px; font-weight:700; }
#timerView.led .result-wrap .btn.green{ background:var(--accent2); color:#04241b; }
#timerView.led .result-wrap .btn.ghost{ background:#241010; color:#ffb0b0; border:1.5px solid rgba(255,59,59,.5); }

/* 批量导入 */
.btn.full{ width:100%; display:block; }
.import-box{ margin-top:10px; padding:10px; background:var(--panel2); border:1px solid var(--line2); border-radius:12px; }
.import-box textarea{
  width:100%; min-height:110px; padding:10px; border-radius:10px;
  border:1px solid var(--line); background:var(--panel2); color:var(--text);
  font-family:inherit; font-size:13px; line-height:1.7; resize:vertical;
}
.import-box textarea:focus{ border-color:var(--accent); outline:none }
.import-box .btn{ margin-top:10px; }